Lubricator.



PATENTED MAR. 5, 1907. G. G. GLASRUD.

LUBRIUATOR.

`APPLIUMION FILED D120.13.19o5.

prove the construction and arrangement of UNITED STATES PATENT OFEIOE.

LUBRICATOR.

To a/ZZ whom it may concern: I

Be it known that I, CHRISTIAN G. GLAs- RUD, a citizen of the United States, and a i resident of Sheyenne, in the county of Eddy l and State of North Dakota, have invented a l new and Improved Lubricator, of which the following is a full, clear, and exact description.

The invention relates to a force-feed lubricator adapted to be applied to connectingrods and other moving parts of engines or other machinery, and it belongs to that class in which the motion required to operate the `lubricatoris derived from a part moving back and forth under the reciprocatory, rotary, or other movement of the part being lubricated.

The object of my present invention is to insure a certain'and reliable action, at the same time providing means by which the feed may be regulated with great exactness.

It is also an object oiE my invention to imthe driving part, rendering the same more simple and certain in action, and providing for complete regulation of its movement.

The invention involves various other features, all of which will be fully set for th hereinaiter and particularly pointed out in the claims.

Reference is to be had to the accompanying drawings, which illustrate as an example the preferred embodiment of my invention, in which drawings` Figure 1 is a side elevation of the lubricater. Fig. 2 is a plan view of the same. Fig. 3 is a vertical section on the line 3 3 of Fig. 2. Fig. 4 is a sectional view of the inertia-arm and operating-pawl. Fig. 5 is an edge elevation thereof, and Fig. 6 is a de tail view of the supporting-plate.

The body 10 of the lubricator is in the form of a cup having an open upper end and a bottom 11,- with a threaded nipple 12 for the discharge of the lubricant. Said nipple is adapted to screw into a corresponding opening in the part to be lubricated, and the body or cup 1() is intended to receive the lubricant, which is usually in the form of a grease or semiiluid substance.

Adapted to ht over the cup or body 10 is a casing 14, which is split, as indicated at 15, and provided with lugs 16, through which a Specification of Letters Patent. Application filed December 13,

screw 17 is passed, enabling the split casing to be clamped tight around the cup 10 inl any position desired. This arrangement l Patented March 5, 1907. 1905. Serial No. 291,553.

makes it possible properly to position the inertia-arm with respect to the line of movement of the part lubricated, as will hereinafter fully appear. The casing 14 is open top and bottom and has in its upper portion a supporting-plate 18, provided with downwardlyprojecting lugs 19 in its periphery, which are fastened to the inner walls of the casing. The supporting-plate 18 lits snugly within the casing and has a central opening 20, in which is arranged a nut 21. This nut is ilanged in its lower portion, engaging the under side of the supporting-plate, and it is also provi( ed with a projection 22, which lits in a corresponding notch in a toothed wheel 23, lying loosely on the supper ting-plate 18, said wheel being thus connected to turn with the nut on the suppor ting-plate. Above the toothed wheel or gear 23 is a second gear 24, having, however, less teeth than the gear 23. The gear 24 loosely encircles the nut, and immediately above the gear the nut is provided with a slot 25, in which is placed a U-shaped locking member or grip 26, this grip bearing on the gear 24 and coactng with the liange in the lower end of the nut, so as to hold the nut and the parts 18, 23, and 24 properly organized. The ends of the grip 26 are turned up, as indicated at 26a, so as to lock the grip in place. Operating within the nut 21 is a threaded stem or screw 27, which carries at its lower end a feeding-piston 28, this piston operating snugly in the cup 10, so that as the piston is moved downward the lubricant is forced out through the nipple 12. The screw 27 is provided with two diametrically opposite longitudinally-extending grooves 27a therein, and in these grooves is loosely iitted the ends oi a wire 29, which passes down inside of the nut, but which, however, does not interfere with the proper coacting ofthe nut and screw. Said wire is connected to the gear 24 by means of a staple 30 or other means. The gears 24 and 23 are driven by a worm 31, which is fastened to a shaft 32, mounted in suitable bearings 33, carried by the casing 14. The worm projects through an opening in the side ofthe casing and also extends into a notch 18a, formed in the supporting-plate 18.

rIhe rotation oi the worm 31 causes the gears 24 and 23 to turn. The gear 24 by reason of the parts 30 and 29 is connected with the screw 27, so as to turn the screwin time with the gear, this connection, however,

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allowing free longitudinal movement of the screw. The gear 23 is connected with the worm 31 through the projection 22, and consequently the nut is rotated w ith this gear 23. Owing to the fact that the gear 23 has more teeth than the gear 24 said gear and the nut run faster than the gear 24 and the screw 27, so that the screw 27 is advanced through the nut at a rate of speed proportionate to the difference in the speed or rotation of the two gears. In this way a slow or steady and continuous movement is imparted to the piston 23, forcing the lubricant from the cup at a constant and controllable speed.

rI`he shart 32 has 'fixed to one end a ratchet 34, and this ratchet has a hub 35, which is loosely embraced by collars 36, formed on the inertia-arm 37. This arm is split to receive the ratchet 34 and has a weighted portion 37 at its lower or free end. rIhe split inertia-arm 37 also receives a pawl 33, which is pivoted therein by a pin 39, the lower end of which is adapted to engage a stud 40, limiting the movement of the pawl independently of the arm, as indicated by the full and broken lines in Ifig. 1. Coacting with the ratchet 34 is a dog 41, which is pivoted on the casing 14 and also .is operated to engage and disengage the ratchet through the inertia of the dog.

42 indicates a stop-pin for limiting the disengaging movement of the dog 41.

rIlle inertia-arm is confined in its movement by two stops or bumpers 43, between which the arm is arranged and which. are carried on plates 44. rfliese plates are adjustably fastened to the casing 14 by means of screws 45 or the like, so that by adjusting the stops toward or from each other the action of the inertia-arm may be regulated, causing the ratchet 34 to be operated fast or slow, as desired.

In the operation'of the engine the lubricator is adjusted on the moving part to be lubricated, so that the shaft 32 extends essentially transversely to the line of movement of said part. As the part to be lubricated moves bacl and forth it carries with it the lubricator, and owing to the inertia of the arm 37 and its attachments a relative movement between the arm and the body of the lubricator is brought about. Similarly the pawl 38 is caused alternately to engage and disengage the ratchet, the pawl engaging the ratchet during the movement of the lubricator in one direction and imparting thereto a certain movement, the said pawl disengaging the ratchet during the movement of the lubricator in the opposite direction, thus enabling the pawl to recover its engagement with the ratchet. In the same manner the dog 41 is operated, this dog engaging the ratchet to prevent retrograde movement thereof during the disengagement of the inertia-pawl, and the dog 41 disengaging the ratchet during the engagement of the pawl 33 with the same. Consequently the shaft 32 is given a regular step-by-step movement in one direction, which movement may be controlled by adjustment of the stops or bumpers 43, giving a fast or slow movement, as desired. The shaft 32, carrying the worm 31, operates the gears 23 and 24,so as to advance the screw 27 and piston 28 in the manner before explained, and in this way a lubricant is steadily forced through the nippie 12 at a rate of speed which may be easily and delicately adjusted.

Having thus described the preferred form of my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A lubricator, comprising a cup, a plunger therein, a threaded stem connected thereto, a nut coacting with the stem, a means for revolubly mounting the nut, a gear connected to turn the nut, a gear connected to turn the stem, the second gear having less teeth than the first, a worm meshing with the gears, a shaft carrying the worm, a means for revolubly mounting the shaft, a ratchet attached to the shaft, an inertia-arm arranged to swing on the shaft, an inertia-pawl carried by the arm and coacting with the ratchet, an inertia-dog carried by the means for mounting the shaft and ooacting with the ratchet, the dog and pawl alternately engaging the ratchet, and means for limiting the movemeiiit of the inertia-arm independently of the sha t.

2. A lubricator, comprising a cup, a plunger therein, a threaded stem connected thereto, a nut coacting with the stem, a means for revolubly mounting the nut, a device for rotating the nut, a device for rotating the stem in the same direction but at a slower speed, a

worm for operating said device, a shaft carrying the worm, means for revolubly mounting the shaft, a ratchet attached to the shaft, an inertia-arm arranged to swing on the shaft, an inertia-pawl carried by the arm and coacting with the ratchet, an inertia-dog carried by the means for mounting the shaft and coacting with the ratchet, the dog and pawl alternately engaging the ratchet, and means for imiting the movement of the inertia-arm independently of the shaft.

3. A lubricator, comprising a cup, a plunger therein, a threaded stem connected thereto, a nut coacting with the stem, a means for revolubly mounting the nut, a device for rotating the nut, a device for rotating the stem in the same direction but at a lower speed, means for driving said devices, a shaft mounting said means, means for revolubly mounting the shaft, a ratchet attached to the shaft, an inertia-arm arranged to swing on the shaft, an inertia-pawl carried by the arm and coacting with the ratchet, an inertia-dog carried by the means for mounting the shaft and coaeting with the ratchet, the dog and pawl IOO alternately engaging the ratchet, and means for limiting the movement of the inertia-arm independently of the shaft.

4. A lubricator, comprising a cup, a plunger therein, a threaded stem connected thereto, a nut coacting with the stem, a means for revolubly mounting the nut, a gear connected to turn the nut, a gear connected to turn the stem, the second gear having less teeth than the first, a worm meshing with the gears, a shaft carrying the worm, means for revolubly mounting the shaft, a ratchet attached to the shaft, an inertia-arm arranged to swing on the shaft, an inertia-pawl carried by the arm and coacting with the ratchet, and an inertiadog carried by the means for mounting the shaft and coacting with the ratchet, the dog and pawl alternately engaging the ratchet.

5. A lubricator, comprising a cup, a plunger therein, a threaded stein connected thc reto, a nut coacting with the stem, a means for revolubly mounting the nut, a gear connected to turn the nut, a gear connected to turn the stem, the second gear having less teeth than the rst, a worm meshing with the gears, a shaft carrying the worm, means for revolubly mounting the shaft, a ratchet attached to the shaft, an inertia-arm arranged to swing on the shaft, an inertia-pawl carried by the arm and coacting with the ratchet, and an inertia-dog carried by the means for mounting the shaft and coacting with the ratchet, the dog and pawl alternately engaging the ratchet, said inertia-arm being bifurcated, and the inertia-pawl being pivoted in the bifurcated portion of the arm.

6. A lubricator, comprising a cup, a plunger therein, a threaded stern connected thereto, a nut coacting with the stem, a means for revolubly mounting the nut, a device for rotating the nut, a device for rotating the stem in the saine direction, but at a lower speed, means for driving said devices, a shaft mounting said means, means for revolubly mounting the shaft, a ratchet attached to the shaft, an inertia-arm arranged to swing on the shaft, an inertia-pawl carried by the arm and coacting with the ratchet, an inertia-dog carried by the means for mounting the shaft and coacting with the ratchet, the dog and pawl alternately engaging the ratchet, means for limiting the movement of the inertia-arm independently of the shaft, said means consisting of two stops, and devices for mounting the stops to permit adjustment' toward and from each other.

7. A lubricator, comprising a cup, a casing secured to the cup and provided with an apertured plate, a nut mounted in the opening of the said plate, a plunger in the cup and having a threaded stem working in the nut, a gear mounted upon the nut to turn therewith, a second gear having less teeth than the iirst gear, said gear being loosely mounted upon the nut and connected with the threaded stem to turn therewith, a shaft mounted on the casing, a worm on the shaft and engaging the said gear-wheels, a ratchet-wheel also on said shaft, an inertia-arm mounted on the hub of the ratchet-wheel and provided with a weight at its free end, a pawl pivoted on the said arm and engaging the ratchetwheel, and an inertia-dog pivoted on the casing and engaging the ratchet-Wheel.

8. In a lubricator, the combination of a cup, a plunger-piston operating therein, a screw attached to the piston, a nut engaging the same, means mounting the nut, a shaft, means for revolubly mounting the same, means operated from the shaft for rotating the screw and for rotating the nut in the same direction but at a higher speed, a ratchet attached to the shaft, an inertia-arm hung loosely from the shaft, an inertia-pawl carried by the arm and coacting with the ratchet, and an inertia-dog mounted on the means for mounting the shaft and coacting with the ratchet.

9. In a lubricator, the combination of a cup, means for forcing the lubricant from the same, a shaft in connection therewith, a ratchet fast on the shaft, an inertia-arm hung from the shaft, an inertia-pawl carried by the arm, and an inertia-dog, the pawl and dog coacting with the ratchet and being arranged to act alternately, said inertia-arm being recessed and the pawl being pivoted in the recess of the arm.

l0. In a lubricator, the combination of a cup, a casing adjustable thereon, a means for forcing the lubricant from the cup, a shaft for driving said means, a ratchet fast on the shaft, an inertia-arm hung loose from the shaft, an inertia-pawl carried by the arm and coacting with the ratchet, and an inertia-dog mounted on the casing and coacting with the ratchet, said pawl and dog acting alternately.

1l. In a lubricator, the combination of a cup, a casing adjustable thereon, a means for forcing the lubricant from the cup, a shaft for driving said means, a ratchet fast on the shaft, an inertia-arm hung loose from the shaft, an inertia-pawl carried by the arm and coacting with the ratchet, an inertia-dog mounted on the casing and coacting with the ratchet, said pawl and dog acting alternately, and adjustable inertia-arm stops mounted in the casing.

In testimony whereof I have signed my g name to this specification in the presence of two subscribing witnesses.

CHRISTIAN G. GLASRUD.

Witnesses:

J. M. WEBB, C. D. BLAKESLEE.

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